[MacPorts] #55393: graphviz +rsvg depends on graphviz; circular dependency; prevents installation

[MacPorts]

#55393: graphviz +rsvg depends on graphviz; circular dependency; prevents
installation
------------------------+------------------------
  Reporter:  rhstanton  |      Owner:  ryandesign
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:
      Port:  graphviz   |
------------------------+------------------------

Comment (by wyuenho):

 From MacPort's perspective, before installation, can't it check for cycles
 first, and if there's one detected, break the cycles into DAGs, and then
 process the DAGS successively?

-- 
Ticket URL: <https://trac.macports.org/ticket/55393#comment:5>
MacPorts <https://www.macports.org/>
Ports system for macOS